The album "Boys of the Lough - Live At Passim" has one of them doing "The Darling Baby", unaccompanied.
I can't remember (or find) the words, but it's about this guy who has to watch the baby when his wife is called to her mother's sickbed. The baby screams it's head off until she shows up again - "He was quiet as a mouse, the wretch!"
After each verse, he sings "Oh my darlin' [something-something] chum / Wait until your mummy comes / Wouldn't you like to suck your thumb / As ever a man so born."
The rest is all spoken. It's a hoot.